baber/WOPTO huggingface dataset:
Patent GB-1440789-A (GB)
Title: Process for preparing catalysts
IPC: B01J37/02
Filed: 1973-09-17
Abstract: 1440789 Coating with oxides; catalytic gas treatment MITSUBISHI JUKOGYO KK 17 Sept 1973 [30 Oct 1972] 43519/73 Heading C1A [Also in Divisions B1 and C2] A film of one or more metal oxides on a carrier is formed by (i) reacting an alcohol with a metallic acid of a metal selected from the transition metals of Groups IVa to VIIa to form an ester, (ii) coating the carrier with the ester, (iii) heating to gel the ester and (iv) baking to pyrrolize the gel and form the oxide. Specified ester-forming metals are Ti, V, Zr, Cr, Mo, W and Mn with the optional addition of compounds of Ni, Co, Cu, Ca, Sr and Zn. The carrier may be in the form of granular, sheet, wire, fibre or knitted or woven fabrics and may be diatomaceous earth, bentonite, acid and activated clays, activated carbon, silica, alumina, glass, ceramics or a metal. The examples describe (2) Cr and Ni oxides in glass fibre cloth which is used alone or combined with granular gamma-alumina as a catalyst for the oxidation of carbon monoxide and hydrocarbons in I.C. engine exhaust gases, (ii) Mo and Co oxides on gamma-alumina, and (iii) V, Mn and Cu oxides on a metallic wire mesh which is used for the oxidation of carbon monoxide and hydrocarbons and the reduction of nitrogen oxides in I.C. engine exhaust gases.
Patent GB-1202283-A (GB)
Title: Improvements in or relating to tyre treads
Inventor: KUTSMICHEL RUDOLF
IPC: B60C11/12
Filed: 1967-09-26
Abstract: 1,202,283. Tyre treads. DUNLOP CO. Ltd. 26 Sept., 1967 [28 Sept., 1966], No. 43642/67. Heading B7C. A tyre tread comprises ribs, e.g. la . . Ic, extending at an angle to the mid-circumferential plane U-U and formed with edges, e.g. 6 . . . 9 extending at an opposite angle y to said plane to counteract the assymmetrical running effects due to the ribs. The ribs are separated by grooves, e.g. 2a ... 2c and the edges may be formed by slots, e.g. 3a ... 3f extending partway across the ribs, or 3g extending between adjacent grooves. The edges may be supplemented by slots 19 or 20 cut in the ribs. In an alternative arrangement the edges are formed by projections on the ribs. The axially outermost edges of the ribs are parallel to the mid-circumferential plane.
Patent GB-1084553-A (GB)
Title: Improvements relating to the excitation of alternators
Inventor: STEVENS SYDNEY ARTHUR
IPC: H02P9/36
Filed: 1964-10-27
Abstract: 1,084,553. Alternator excitation. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 28, 1965 [Oct. 27, 1964], No. 43731/64 Heading H2A. The invention provides an alternator excitation arrangement as claimed in Specification 944,398, except that the first excitation current component is derived from an auxiliary alternator in phase with the main alternator. The main and auxiliary alternators supply lines are MR . . . MN and AR . . . AN respectively.
Patent GB-1320199-A (GB)
Title: Process for recovering hydrogen chloride
IPC: C01B7/01
Filed: 1970-09-15
Abstract: 1320199 Hydrogen chloride S EZAKI 15 Sept 1970 [25 Feb 1970] 43936/70 Heading C1A Hydrogen chloride is produced by (a) burning an organo chlorine compound (e.g. a waste gas stream), (b) injecting the combustion gas obtained in (a) into an extracting agent solution which may contain H 2 SO 4  or CaCl 2  simultaneously to cool the gas and concentrate the solution, (c) contacting the gas from (b) with water to give dilute HCl having a concentration below the azeotropic composition and (d) concentrating the dilute HCl from (c) by extractive distillation using the concentrated extracting agent from (b) to obtain HCl or HCl acid having a concentration above the azeotropic composition and a water diluted extracting agent solution which is recycled to (b).
Patent GB-935541-A (GB)
Title: Magnetic lithographic inks
IPC: C04B35/26
Filed: 1959-12-29
Abstract: A pigment for use in an oleophilic lithographic ink (see Group IV(a)) comprises particles of a magnetic material, e.g. gamma ferric oxide, natural and artificial magnetites and cobalt, nickel and barium ferrites, having a hydrophobic surface coating.  The particles are rendered hydrophobic (i) by coating with a suitable resin, e.g. silicone, vinyl acetate or chloride, polyethylene, polyamide, phenolic, alkyd, coumarone-indene, epoxy, cyclized rubber, melamine, chlorinated paraffin or zein; (ii) by coating with a dyestuff by a laking procedure, e.g. a rhodamine tungstate-molybdate complex is formed in situ on the particles; (iii) by treatment with a phosphatizing or nitrating agent so as to provide roughened pigment particle surfaces; or (iv) by coating with certain surface active agents, viz. ricinoleic acid, dialkyl quarternary ammonium chloride/ethoxylated amine acetate mixtures, organic aluminium compounds and oil-soluble non-ionic ammonium compounds with or without subsequent treatment with NaOH. Examples are given.ALSO:An oleophilic lithographic ink contains, as a pigment, fine magnetic particles having a hydrophobic surface coating for reducing the emulsification tendencies of the ink resulting from the hydrophilic nature of the uncoated magnetic pigment particles. Magnetic materials specified are gamma ferric oxide, natural and artificial magnetites, unicrystalline iron, magnetic alloys, and cobalt, nickel and barium ferrites.  The surfaces are coated as by treatment with a resinous material, a dye surfactant material, a reactive chemical giving rise to a phosphatizing or nitrating surface reaction or a certain surface active agent (see Group III).  In one formation a litographic ink consists of gamma ferric oxide coated with ricinoleic acid, an isophthalic alkyd varnish, a black colourant base (i.e. impingement black in linseed oil), blue toner and paraffin oil.  In another formulation the binder is a rosin-modified phenol-formaldehyde resin varnish and a cobalt drier is also added.
Patent GB-1494376-A (GB)
Title: Measuring of tension in a filament
IPC: B65H59/18
Filed: 1975-10-27
Abstract: 1494376 Measuring tension BATTELLE MEMORIAL INSTITUTE 27 Oct 1975 [29 Oct 1974] 44197/75 Heading G1W The tension of a moving filament is measured by deflecting the filament laterally, the filament being held in the deflected position by a film of air between the filament and a support 1, and the pressure or rate of flow of air supplied to the film being measured. The filament is guided along a convex groove 4 in the support, the groove having a triangular cross-section, and air is supplied to the groove from a supply 6 via a variable restrictor 7, and a conduit 2 and slot 3 formed in the support 1. The pressure in the conduit 2 is amplified at 8 and the conduit pressure or flow-rate may be displayed at 9. Alternatively the measurement may be used to control the speed of a spindle 11, Fig. 4, in a ring and slider type spinning machine or to control the speed of a roller around which the filament passes from a supply bobbin, Fig. 5, (not shown), or a pneumatic braking device, Fig. 6, (not shown) to maintain a constant filament tension. In the modification of figure 7, a further pair of gas fed slots 3b, 3c open into the groove.
Patent GB-1023999-A (GB)
Title: Improvements in or relating to methods for impregnating tungsten dispenser cathodes
Inventor: KOPPIUS OTTO GUSTAV
IPC: H01J9/04
Filed: 1963-11-08
Abstract: 1,023,999. Cathode materials and processing. SEMICON ASSOCIATES Inc. Nov. 8, 1963, No. 44237/63. Heading H1D.  In manufacture of a cathode, a porous body of sintered tungsten is impregnated witha molten alkaline earth metal oxide in the absence of any diluent other than an alkaline earth metal tungstate which may be present in a mol ratio to the oxide of not more than 1 to 3, the impregnation being carried out in the presence of an auxiliary source of barium vapour. The porous tungsten body may be prepared by pressing tungsten powder to a density of 80 to 86% of the theoretical, sintering, impregnating with a plastic filler, e.g. methyl methacrylate, to facilitate machining, and heating to remove the plastic after shaping. The emissive mixture preferably comprises barium oxide, and one or more of barium, calcium or strontium tungstate, preferably strontium tungstate, in a mol ratio of 5 to 1, the ingredients being mixed in powder form and at least semi-fused before being reground and spread over the porous tungsten body. Impregnation may be effected by heating at 1850‹C. for 15 to 30 sees. in hydrogen, in the presence of an auxiliary source of barium vapour, which prevents corrosion of the porous tungsten and ensures more uniform emission characteristics. The cathode may be used in thermionic generators.
Patent GB-903918-A (GB)
Title: Improvements in and relating to electromagnetic relays
Inventor: BROWN GEORGE LESLIE
IPC: H01H50/68
Filed: 1960-12-24
Abstract: 903,918. Electromagnetic relays; snap-action switches. ERICSSON TELEPHONES Ltd. Dec. 24, 1960, No. 44362/60. Class 38 (5). In a snap-action relay the contact 7 on a contact spring 6 engages a contact 8 on a pivoted carrier 9 biased by a spring 11 so as to snap to one or other of its extreme positions on being moved past its mid-travel position. The spring 6 is engaged by an insulating bar 5 on an arm 4 extending from the pivoted armature 2 and an insulating stud 21 secured to the end of the spring 6 passes through the forked end 23 of the carrier 9. The latter pivots on a support member 12 having lugs 17 loosely engaging in slots 19 in the carrier. The spring 11 is fixed to a rod 13 secured by a nut 14 at one end of the member 12 and to the end 20 of the carrier 9. When the winding 1 is energized to attract the armature 2, the upward movement of the bar 5 effects movement of the contacts 7, 8 together until the mid-travel position shown in the drawing is reached. The carrier 9 then snaps upward to open the contacts 7, 8, due to the over-centre action of the spring 11, its travel being limited by the engagement of the forked end 23 with the head 24 of the stud 21. When the relay is de-energized the spring 6 moves downward and the stud 21 thereon moves the carrier 9 over the mid-travel position so that it snaps to the contact-engaged position.
Patent GB-444191-A (GB)
IPC: G03C7/14
Abstract: 444,191. Colour photography. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges.; Frankfort-on-Main, Germany) Sept. 14, 1934, No. 26434. [Class 98 (ii)] In the printing of lenticular films comprising portions having different filter distances or filter sizes, on passage from one such portion to another in the course of the printing operation, a compensating alteration in the arrangement of the optical printing system is produced automatically with the aid of controlling marks either carried on the film which is being printed from or on a separate film. As shown, a frame R carries a concave lens N, a plane glass plate S and a convex lens P. The lenticular film 0 illuminated by the source of light L is copied on to the film K by an objective A. The frame R is provided with a piece of magnetizable material attracted by either of two solenoids actuated by contacts carried by the film O. In a modification diaphragms carried by levers controlled by electromagnets may be put into position by means of appropriate contacts on the film O. In a further modification three lamps may be controlled by the contacts. In another modification three frames each containing three filters may be controlled during the simultaneous contact printing on to a film coated on both sides of a lenticular film and a non- lenticular film which have been exposed together as a bipack. The contacts, which are on the lenticular film may be replaced by marks scanned by a photo-electric cell. In a further modification notches in the edge of the lenticular film actuate electromagnets which control the insertion of masks for changing the filter distance into the path of the printing beam. Specifications 247,168, [Class 97 (i)], 353,121, 356,701, 364,559, 375,338, 382,974, 395,124, 399,977, 435,929, and 440,187 are referred to.
Patent GB-999360-A (GB)
Title: Process for the thermal recovery of hydrocarbons from an underground formation
IPC: E21B43/243
Filed: 1963-11-11
Abstract: 999,360. Wells, &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 11, 1963 [Nov. 13, 1962], No. 44472/63. Drawings to Specification. Heading E1F. In a process for the recovery of hydrocarbons from an underground formation an oxidizing gas is injected into a well communicating with the formation, a portion of the hydrocarbons is ignited, and combustion and condensation fronts are formed and displaced towards a production well with the condensation front leading, the temperature of the combustion front ranges from 200‹ C. to 350‹ C. The temperature may be controlled by varying the amount of oxidising gas (air), or by injecting water into the formation in such quantities that the temperature of the combustion front is equal to the temperature of saturated steam at the partial vapour pressure of water prevailing in the combustion front. Water is formed by the combination of the gas and the hydrogen of the hydrocarbons and this water together with water of the formation is displaced as steam towards the production well. After emission of heat the steam condenses to form the condensation front which drives hydrocarbons to the production well. The temperature of the combustion front may be measured by means of auxiliary wells or estimated from the percentage of carbon dioxide leaving the production well.
Patent GB-959105-A (GB)
Title: Floating body, for example, a component of a floating bridge
IPC: E01D15/14
Filed: 1961-05-11
Abstract: 959,105. Floating bridges. BETEILIGUNGSUND PATENTVERWALTUNGS GESELLSCHAFT. May 11, 1961 [May 12, 1960], No. 44838/62. Divided out of 959,104. Heading E1G. [Also in Division B7] A component of a floating bridge comprises an element 1 of inverted U-section inside which is an inflatable tube 6. The tube may be enclosed by a membrane 5 of rubberised fabric, plastics or aluminium foil. The element 1 comprises metal sheet bent in zig-zag form and covered with metal sheets. The U-shape of the elements allows compact packing for transport.
Patent GB-1069985-A (GB)
Title: Improvements ini or relating to wood veneers
Inventor: BROWNSELL HAROLD GEORGE
IPC: B27D1/06
Filed: 1963-11-13
Abstract: 1,069,985. Woodworking. H. G. BROWNSELL and T. T. BOUGHTON & SONS Ltd. Nov. 12, 1964 [Nov. 13, 1963], No. 44886/63. Heading B5L. A method of producing a sheet of wood veneer comprises corrugating the sheet by passing it when in a supple condition through the nip formed between two movable opposed surfaces having teeth, splines, ridges or the like thereon, the corrugations being made across the grain preferably at an angle of 90 degrees. The sheet is made supple by steaming or steeping in cold or hot liquid and passed through the nip in such a manner that the corrugations 11, Fig. 3, are formed at substantially 90 degrees to the direction of the grain 12. The nip may be formed by a pair of intermeshing splined rollers 40, 41, Fig. 12, roller 41 being driven by a motor 44 and roller 40 being adjustable. Alternatively, the nip may be formed by a pair of endless bands running over blocks or rollers. The corrugated veneer sheets may be assembled in a stack, each sheet being coated with a bonding material, such as a resin glue, and the stack be placed in a press which compresses the stack and forms arches 14, Fig. 5, in a single direction parallel or perpendicular to the corrugations or in a plurality of directions. The press 80, Fig. 19, has upper and lower elements 84, 86, each of which has a number of rollers 85, 87 held in position by wires 72, Fig. 17, which also act to retain the-corrugations during the forming of the arches on the stack. The surfaces of the stack can then be machined flat to exhibit an artificial grain formation. Sheets of veneer may be made from the block or a part of the block, say ¢ inch thick, may be used for making an article, such as a table or tea-tray.
Patent GB-1188747-A (GB)
Title: Magnet Controlled Lock.
Inventor: BARNEY WALTER WARREN
IPC: E05B47/00
Filed: 1968-09-24
Abstract: 1,188,747. Magnetic locks. W. W. BARNEY. 24 Sept., 1968, No. 45218/68. Heading E2A. A lock operated by a coded magnetic key 32 has magnetic tumblers 48 which are selectively lifted by the pattern of field on the key to allow movement of blocking pins 30 and so allow a locking plate 23 to be drawn obliquely down by an eccentric pin on the operating spindle 11 to allow this to rotate and withdraw the bolt 34 by means of rack and pinion 17. The key consists of a cord 32 having magnets 38 concealed in it, and it serves to attract magnets 48 lying in transverse bores 47 in plugs 29. Before the key is inserted, magnets 48 drop to block pins 30, but insertion of the key lifts these magnets to unblock pins 30 to allow inward movement of plate 23. The polarity of the magnets must be correctly coded by rotation of plugs 29 through 180‹ and then locking by pins 43, the inactive pins 30' lying in grooves 23' in plate 23 so that they are inactive. The operating spindle 11 is driven from the knob 12 through a clutch 14, 15, 16 to prevent forcing. The lock may secure a door or other devices.
Patent GB-973252-A (GB)
Title: Base plate for a pit prop
IPC: E21D11/36
Filed: 1961-12-18
Abstract: 973,252. Base plates for pit props. STAMICARBON N.V. Dec. 18, 1961 [Dec. 16, 1960], No. 45378/61. Heading E1E. A base plate 1 has at least two means 9 for locating pit props at different angles thereon and an upstanding face 3 to accommodate the thrust member of a conveyer or driving gear, see Figs. 4 and 5 (not shown). The base plate consists of plates 2, 3, 4, 6, 8, 20 which are welded together as shown and provided with side handles 13, a projecting ledge 5 and a strip 21 for restricting upward movement of a buffer beam.
Patent GB-1055917-A (GB)
Title: Bearing assembly and method of manufacturing the same
Inventor: READMAN JOHN
IPC: F16C35/077
Filed: 1965-10-27
Abstract: 1,055,917. Bearings. ROLLS-ROYCE Ltd. Oct. 27, 1965, No. 45588/65. Heading F2A. A ball or roller-bearing, or means secured thereto, is located relative to a member by means of a liquid being poured through an access port and into a space between one of the races, or means secured thereto, and the member; said liquid solidifying and retaining the race relative to said member. In an embodiment, an outer race 5 of a ball-bearing is mounted in a sleeve 9 and is restricted in one axial direction by an inwardly-directed flange 15 of the sleeve 9. The latter is received by a bore 10 of an engine structure 1, having an inwardly-directed flange 11 which restricts the bearing in the other axial direction. The solidifying liquid is supplied through a port 16 and enters annular channels 14, 13 formed in the structure 1 and sleeve 9 respectively, so as to form a key 12. The liquid may be synthetic plastics material, may be an adhesive or may be a metal. An inner race 4 may be located relative to a shaft 3 by means of the solidifying liquid.
Patent GB-1478987-A (GB)
Title: Process for the production of stable water-in-oil emulsions of water-soluble polymers
IPC: C08F20/56
Filed: 1974-10-22
Abstract: alpha ,ss-monoolefinically unsaturated monomers which are water-soluble or are capable of forming water-soluble salts are converted into the state of a solution in the water phase of a water-in-oil emulsion. Their polymerisation is carried out in the W/O emulsion with the aid of photoinitiators which are soluble in the water phase or oil phase and with the aid of UV light. In this way, stable W/O emulsions having a high content of extremely high-molecular-weight polymers dissolved in the aqueous phase are obtainable. The preparation can be carried out either batchwise or continuously. The process is suitable for the preparation of polymers which are employed as retention agents in papermaking or as flocculants in effluent treatment.
Patent GB-1091983-A (GB)
Title: Draft and buffing gear for railway cars
IPC: B61G9/22
Filed: 1964-11-10
Abstract: 1,091,983. Railway vehicle draft gear. STANDARD CAR TRUCK CO. Nov. 10, 1964 [May 27, 1964], No. 45818/64. Heading B7T. A railway vehicle draft gear comprises a yoke, Figs. 7, 8, having a rearwardly extending lug 30 and vertical straps 31, slots 37 in the straps to receive a draft key, a horizontal floor 34 and a horizontal top wall 39. The lug 30 is supported and guided in a sleeve 6, Figs. 1, 2, and a cradle 24 slidable on a wear plate 18 carries an hydraulic draft cushion 27 and a follower 26 (see also Fig. 4, not shown). The follower 28 also movable on the wear plate 18 receives the forward end of the cushion, and the coupler shank 40 has a wear plate 43 engaged by a spring-pressed plate 44. A compression member 47 applies buffing loads also to the other end of the vehicle until the yoke base 32 engages the lug 23, but when this position is reached the cushion 27 may be further compressed.
Patent GB-1119514-A (GB)
Title: Production of solids from solutions or slurries by evaporation
IPC: B01J8/00
Filed: 1965-10-29
Abstract: 1,119,514. Evaporation of solutions to obtain dry solids; spray producers. S. HORROCKS. 5 Oct., 1966 [29 Oct., 1965], No. 45860/65. Headings B1B and B2F. [Also in Division F4] Solids are obtained from solutions or slurries by injecting the solution or slurry through nozzle 12 into a fluidized bed of hot solid particles wherein a zone of ordered motion 11  of particles is maintained, whereby the hot particles become coated with the solution or slurry, and evaporation of liquid takes place. Supplied through pipe 5 to nozzle 12, the solution or slurry passes through holes or slots 15 (Fig. 2) into narrowing passages 16 which accelerate the liquid, and produce sheets 13 of droplets outside the nozzle in a direction across the zone of ordered motion 11 of particles. The bed of particles is fluidized by injecting gas into the base of the bed at a plurality of points; and the ordered motion 11 is maintained by passing a high-velocity air stream 14 into the bed. For this purpose, air at high-pressure is supplied through duct 3, and accelerated in constriction 7. In an alternative embodiment, the high-velocity air stream is caused to move in a rotational manner by vanes disposed within duct 3 and/or constriction 7. In order to produce solid sodium sulphate from solution, a fluidized bed of sodium sulphate particles is employed.